113226520 has 64 divisors (see below), whose sum is σ = 279223200. Its totient is φ = 40980480.

The previous prime is 113226479. The next prime is 113226521. The reversal of 113226520 is 25622311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 113226491 and 113226500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113226521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121416 + ... + 122344.

Almost surely, 2^113226520 is an apocalyptic number.

113226520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113226520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139611600).

113226520 is an abundant number, since it is smaller than the sum of its proper divisors (165996680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113226520 is a wasteful number, since it uses less digits than its factorization.

113226520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 113226520 is about 10640.7950830753. The cubic root of 113226520 is about 483.7816445546.

Adding to 113226520 its reverse (25622311), we get a palindrome (138848831).

The spelling of 113226520 in words is "one hundred thirteen million, two hundred twenty-six thousand, five hundred twenty".